Unit 1 A land of diversity 1
课时Ⅰ Warming Up 1
课时Ⅱ Pre-reading,Reading and Comprehending 4
课时Ⅲ Learning about Language 10
课时Ⅳ Using Language 13
Unit 2 Cloning 20
课时Ⅰ Warming Up 20
课时Ⅱ Pre-reading,Reading and Comprehending 23
课时Ⅲ Learning about Language 29
课时Ⅳ Using Language 32
Unit 3 Inventors and inventions 37
课时Ⅰ Warming Up 37
课时Ⅱ Pre-reading,Reading and Comprehending 40
课时Ⅲ Learning about Language 48
课时Ⅳ Using Language 50
Unit 4 Pygmalion 55
课时Ⅰ Warming Up 55
课时Ⅱ Pre-reading,Reading and Comprehending 58
课时Ⅲ Learning about Language 66
课时Ⅳ Using Language 68
Unit 5 Meeting your ancestors 74
课时Ⅰ Warming Up 74
课时Ⅱ Pre-reading,Reading and Comprehending 79
课时Ⅲ Learning about Language 85
课时Ⅳ Using Language 86